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KMID : 1012020210100020167
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Physical Therapy Rehabilitation Science
2021 Volume.10 No. 2 p.167 ~ p.174
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The Immediate Effects of Single Leg Bridge Exercise on Abdominal Muscle Activity in Subacute Stroke Patients : a Preliminary Study
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Kim Ho-Young
Park Chan-Bum
Bang Soo-Yong
Jang Ho-Young
Kim Yong-Ju
Lee Suk-Min
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Abstract
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Objective: Single leg bridge exercise (SLBE) improves trunk muscle activation and provides muscle stability by aligning joints related to posture. This preliminary study aimed to investigate the effects of SLBE on abdominal muscle activation in subacute stroke patients.
Design: Cross-sectional study.
Methods: Fifteen subacute stroke patients (9 males, 6 females) voluntarily participated in this study. SLBE was performed on the affected side. Each individual patient performed an SLBE ten times in three sets and was asked to hold their position for 5 s. Muscles activity was recorded using a surface electromyography (EMG) system before and after the SLBE. A surface EMG system was used to analyze the muscle activity during general bridge exercise, including the rectus abdominis (RA), internal oblique (IO), and external oblique (EO) abdominal muscles.
Results: Muscle activity of both EO and IO on the affected side significantly increased (p<0.05), whereas the muscle activity of the RA and the three muscles on the unaffected side did not show a significant difference. In addition, improvement in muscle asymmetry of the EO and IO showed a significant change after SLBE (p<0.05).
Conclusions: SLBE is effective in activating the abdominal muscles of stroke patients on the affected side and is a helpful exercise intervention that activates the muscles to transform asymmetric abdominal muscles into symmetric patterns.
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KEYWORD
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Electromyography, Exercise, Abdominal muscles, Muscle activation, Stroke
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